Lamp-burner attachment.



G. W. SMITHSON.

LAMP BURNER ATTACHMENT.

APPLICATION FILED IAILZO, 1912.

1,05 1 ,644, Patented Jan. 28, 1913.

WITNESSES 56 WmZZ/ZLSOM ATTORN EY GEORGE WRAY SMITHSON, OF MADELIA,MINNESOTA.

LAMP-BURNER ATTACHMENT.

Specification of Letters Patent.

Application filed January 20, 1912.

Patented Jan. 28, 1913. Serial No. 672,448.

To all whom it may concern Be it known that I, Gnonon WV. SMITIISON, acitizen of the United States, residing at Madelia, in the county ofVatonwan and State of Minnesota, have invented a new and usefulLamp-Burner Attachment, of which the following is a specification.

This invention relates to attachments for lamp burners, and has for itsobject the provision of a readily attachable and detachable device,adapted to fit upon any ordinary lamp burner and operating when attachedthereto to greatly improve the combustion and as a consequence effect asaving in fuel together with a better illumination. These objects areaccomplished by the peculiar conformation and relation of the parts ofthe attachment, whereby the oil in the wick is more perfectly gasifiedbefore being supplied to the flame, and the supply of air is properlydistributed and supplied to the flame in such manner as to securepractically perfect combustion, thus avoiding the smoke and odor usuallyassociated with oil burning lamps.

The invention as thus outlined and as hereinafter particularly claimedwill be readily understood from the following detailed description,taken in connection with the accompanying illustrative drawing, whereinthe preferred and a modified form of invention is shown.

In the drawing :F igure 1 is a vertical section through the burnershowing the preferred form of the attachment in side elevation. Fig. 2is a vertical sect-ion on the line 2-2 of Fig. 1. Fig. 3 is aperspective view of the attachment disassociated from the burner. Fig. 4is a similar view of a modification.

In the drawing an ordinary lamp burner is shown comprising in generalthe burner cone 1, hinged to the base 2 and provided with the usualforaminous base plate 8, within which parts are mounted the wick tube 4containing the Wick 5.

The attachment forming the subjeot-matter of the present applicationcomprises a blank of sheet metal cut out and bent to form oppositelydisposed upwardly converging plates 6 and 7 ,,having downwardly diveringlegs 8, the two plates connected at their ends by Webs 9 provided in themedial portion of their inner edges with notches 10. The attachment isalso advantageously provided between the legs 8 with resilient arms 11inwardly extending from the two plates 6 and 7.

The attachment is adapted to be placed within the burner cone and aboutthe wick tube, as shown in Figs. 1 and 2, the resilient arms 11 bearingfrom opposite sides against the wick tube and the two notches 10 of thewebs 9 engaging the edges of the tube, whereby lateral displacement ofthe attachment with reference to the wick tube' is avoided. Theattachment is supported vertically by its legs 8 resting upon thefor-aminous ventilating base plate 3.

It will be observed by an inspection of Fig. 2 that the two plates 6 and7 occupy positions upon opposite sides of and equally spaced from thewick tube and extending from a position some distance below the top ofthe said tube to a point slightly above the same. It will also beobserved that the passage of air upwardly from the ventilating plate 3about the wick tube between the plates is unobstructed, so that the airsupply to the burner through the plate 3 is divided by the attachmentinto two portions, one passing adjacent to the wick tube through theattachment and the other outside of the attachment, the first portionbeing supplied first to the flame at the wick and the second portionsupplied later at a point above the wick.

The position of the two plates relative to the tube is such that theheat from the flame is deflected against said tube in its upper portion,whereby the oil in the wick adjacentthe point of combustion is highlyheated and more completely gasified than has heretofore been usual. Theair supply to the flame at the end of the wick is also caused to passthrough this superheated space and is supplied to the flame in a morehighly heated condition than would otherwise be the case and at a highertemperature than that of the air supplied to the flame in its upperportion.

The resilient arms 11 may be dispensed with, as shown in Fig. 4,although where used they serve as an additional means of transmittingthe heat from the plates 6 and 7 to the burner tube 4:.

Many attempts have heretofore been made to improve the combustion of theoil in lamp burners so as to do away with the objectionable odor andsmoke consequent upon imperfect combustion, but such attempts haveusually been embodied in forms of construction which involve a changingof the burner itself or in an attachment which directly modified theform of the flame or interfered with the supply of air to the flame.

In the present invention are combined the important features ofsuperheating the wick tube in its upper portion without unduly heatingthe lower portion thereof or the oil in the fount, and also themodification of air supplied to the flame, so that the air supplied tothe flame at its lower portion is warmer than that supplied to the outerportion, both being unrestricted. Also the invention provides for theprotection of the flame laterally from side drafts due to the violentblast of air upwardly through the ventilating plate occasioned by theopening of a window or door, it being observed that the air passingthrough said plate and impinging upon the wick is directed verticallythereof, while the outer currents of air are only permit-ted to flowlaterally after they reach a point above the wick.

The attachment is one which is very inexpensive, may be instantly placedin position upon any lamp, is invisible when in use and is veryeffective to produce and maintain perfect combustion and highilluminative value.

WVhat is claimed is 1. An attachment for lamp burners comprisingupwardly converging horizontally parallel plates connected at their endsonly by transversely notched webs and provided with downwardly diverginglegs and with inwardly extending resilient arms intermediate of saidlegs, the attachment adapted to surround the wick tube with its legsresting upon the perforated base plate of the burner with the notches ofits webs in engagement with the end of the wick tube and with theresilient arms bearing against the sides of the tube and. with itsplates in spaced relation and parallel to the tube as viewedhorizontally.

2. An attachment for lamp burners comprising upwardly converginghorizontally vparallel plates having their ends connected bytransversely notched webs and provided with legs, the attachment adaptedto be placed within the burner about the wick tube with its legs restingupon the perforated base plate of the burner and with the notches of itswebs in engagement with the end of the wick tube and with its plates inspaced relation and parallel to the tube as viewed horizontally, theheight of the attachment being such that the plates extend from a pointconsiderably below the top of the wick tube to apoint slightly above thetop of the wick in its normal position.

In testimony, that I claim the foregoing as my own, I have heretoa'flixed my signature in the presence of two witnesses.

GEORGE VVRAY SMITHSON.

Witnesses Gno. W. SUGDEN, JNO. N. DEGLMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

